public class Primenumber {
 public static void main(String[] args) {
  int j;
  int count=0;
  boolean flag;
  for(int i=2;i<2000;i++){
    flag=false;
  for(j=2;j<i;j++){
  if(i%j==0){
  flag=true;
 break;
     }
 }
 if(!flag){

                if(count%5 ==0) {
                    System.out.println();
                }
                count++;
                System.out.print(i+" ");
            }
        }
     }
}